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Cdio In Aerospace Engineering: The North America Aerospace Project Progress Report

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Collection

2010 Annual Conference & Exposition

Location

Louisville, Kentucky

Publication Date

June 20, 2010

Start Date

June 20, 2010

End Date

June 23, 2010

ISSN

2153-5965

Conference Session

Aerospace Technical Session

Tagged Division

Aerospace

Page Count

30

Page Numbers

15.267.1 - 15.267.30

Permanent URL

https://peer.asee.org/16251

Download Count

136

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Paper Authors

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Edward Crawley MIT

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Robert Niewoehner United States Naval Academy

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Jean Koster University of Colorado, Boulder

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Abstract
NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

D. Composite truss member lay-up, summary project description

Author: Jean Koster, jean.koster@cu.edu

1. Overview 1.1. Overall goal Manufacture a unidirectional glass fiber-reinforced epoxy matrix strut with round cross- section that can sustain a theoretical load of 3500 lbs without failing.

1.2. Societal context/relevance In the quest for increased performance and fuel savings of all kinds of vehicles, which includes reduced weight and lower cost, current metallic alloys frequently have reached their limits. Composites, which are made of two or more constituents, proved promise to fulfill these requirements without jeopardizing safety.

1.3. Program integration The project is integrated into an introductory course on materials science which includes a few weeks of studies on composite materials. The strut design and manufacture may take 6 hours of laboratory and two hours of testing. Limitations may occur due to availability of tensile testing equipment.

1.4. Project description and scope The objectives of this lab were to design and fabricate (cast) a fiber reinforced strut, perform a tensile stress test, and obtain stress/strain data from the sample. The groups were expected to understand the effect of the number of fibers within the strut, the effect of cross sectional area ratios on the strength of the strut, and identify the challenges and difficulties in manufacturing a composite material.

1.5. Learning activities and tasks 1.5.1. Model the Modulus of elasticity of composites 1.5.2. Manufacture a composite strut 1.5.3. Prepare a strut for tensile testing 1.5.4. Operate tensile testing equipment 1.5.5. Analyze data

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